Association of central and peripheral blood pressures with intermediate cardiovascular phenotypes

Area of Science:

• Cardiovascular Medicine
• Hypertension Research
• Clinical Physiology

Background:

• Numerous studies indicate a stronger association between central blood pressure (BP) and cardiovascular outcomes compared to brachial BP.
• Central BP is increasingly recognized as a more accurate reflection of hemodynamic load on the vasculature and heart.

Purpose of the Study:

• To evaluate the superior relationship of central BP over brachial BP in predicting cardiovascular phenotypes and target organ damage.
• To compare the predictive value of central and brachial pulse pressure (PP) for vascular disease and left ventricular hypertrophy (LVH).

Main Methods:

• Systematic review and meta-analysis of existing patient-based and population-based studies.
• Analysis of data across diverse ethnicities and study designs to assess the robustness of findings.

Main Results:

• Central BP demonstrates a superior relation to intermediate cardiovascular phenotypes and target organ damage compared to brachial BP.
• Pulse pressure (PP) is more strongly associated with vascular disease, while systolic pressure is a key determinant of LVH.
• Findings are consistent across various study types and ethnicities, supporting the robustness of central BP's predictive power.

Conclusions:

• Central BP measurements offer superior prognostic value for cardiovascular risk and target organ damage over brachial BP.
• Further research is warranted to explore the role of central BP in LV diastolic dysfunction and heart failure with preserved ejection fraction (HFpEF).
• Lowering central pressure may have a greater impact on hypertensive cardiovascular hypertrophy, requiring confirmation in larger intervention studies.